Electrical distributing-board.



Patented Apr. 19,1910.

H. J. 'B LAKESLEE. ELECTRICAL DISTRIBUTING BOARD.

APPLIOATION FILED JUNE 5, 1907.

ANDREW s GRAHAM CD, Puoroi mocmwzns wasrwvmN D c UNITED STATES PATENT OFFICE.

HENRY J'. BLAKESLEE, OF UTICA, NEW YORK.

ELECTRICAL DISTRIBUTING-BOARD.

To all 'whom it may concern:

Be it known that I, HENRY J. BLAKESLEE, a citizen of the United States residing at Utica, in the county of Oneida and State of New York, have invented certain new and useful Improvements in Electrical Dis tributing-Boards, of which the following is a specification, reference being had therein to the accompanying drawing.

My invention relates to an improved distributing board for electric supply systems, and I declare the following is a full, clear, concise and exact description thereof sufricient to enable one skilled in the art to make and use the saine, reference being had to the accompanying drawings in which like letters and numerals refer to like parts throughout.

The invention comprises several new and useful features, both in the matter of economy and efficiency, as will appear from the description and drawings which disclose but a single illustration of my invention.

In the drawings Figure 1 is a plan view of a distributing box, parts being broken away, and Fig. 2 is a sectional view of the same on line A-A of Fig. 1. Fig. 3 is a cross sectional View but with a slight modiication, and Fig. 4L is a detail view of a portion.

Referring to the figures in detail, 1 represents the box as a whole which is to be provided with suitable supporting means and is apertured for conduit 2 and a plurality of conduits 3, 3 for branch wires. The sides of the box, or certain of them, as shown in Fig. 1, have interior shoulder A on which to support the distributing board or super-base by suitable attachments not necessary to describe or show.

In Fig. 3 is shown an alternative form of support for the-board, consisting of small brackets 5 secured to the box-walls and pierced for screws 6 through the board. A cover, a, is shown in Fig. 3 to be mounted and secured by suitable means.

The distributing board or super-base is shown by 7 and consists of an insulating plate, as of slate or the like, and is pierced at a plurality of point-s, 8, 8, preferably arranged in pairs, to allow access for electrical contact means from one side of the board to contact points on the other side. On the Specification of Letters Patent.

Application filed June 5, 1907.

board are xed bus-bars 9, 9, (as by means Patented Apr. 19, 1910.

serial No. 377,320.

of a shell to be described) having holes arranged so that the holes of one bus-bar register with one of the holes of each pair of holes in the board and those of the other bus-bar register with the other hole of each such pair.

The hole in the board need not be of a uniform diameter through the board but may be substantially larger on the side of the bus-bar and for perhaps half the thickness of the board, the further portion of the bore being smaller, as clearly seen in the present showing of the device in the drawings, the different bores being shown as concentric.

The former port-ion of the bore has secured therein a conductive shell 11 interiorly threaded, for instance, to receive a plug. The shell may be secured in the aperture in the super-base or board in any suitable manner but I show it as being swaged in place, the inner end being forced in a flare into a slight recess 12 at the base of the larger bore. The other or outer end of the shell is shown (Fig. 4L) as slightly overlapping the-bus-bar to hold that in place. Other suitable means may be preferred to hold the bus-bar in place.

On the base of the box are mounted, by any suitable means, non-conductive studs 13, 13, centrally bored and having a lateral in tercepting bore to receive wire 14e, which is held in place at the end of the stud by being secured to a small conductive bolt 15 having nut 16, providing a contactor point,.the bolt and the nut being held in place when properly adjusted, and also holding the wire, by the engagement of the head of the bolt and nut with shoulder 17 formed in the bore of the stud 13. Connection is made between the wire 1li and the nut 16 whereby the nut becomes and acts as a contact point. The space in the stud which is not taken up by the wire and its supports may be iilled by a water-proof compound, 11a, of suitable nat-ure. The plug 19 is made generally of porcelain or the like and has around it a thimble 9.0 threaded to register with the shell 11 and be secured therein by any suitable means. In the plug is wire 21, which is the fuse referred to herein, and which connects at one end with the thimble 20 as seen in Fig. 4 and at the other end forms a terminal for contact at point 16 with the terill minal of wire let. The current is thus established from the bus-bar through the shell and thimble to the fuse proper and thence to the Contact point 1G. It will be evident, however, that the interposition of the thimble 20 is not essential since the' fuse 2l might be formed at the other end to contact directly with the shell ll, as seen at the right in Fig. 3, and, that the shell ll might be omitted, if other means be preferred to hold the busbar in place, when the fuse 2l would contact directly with bus-bar 9L One of the wires in conduit 2 is connected to one bus-bar and: the other wire to the other bar. This may be done by any of the means familiar to those skilled in the art. The current coming in on one wire passes through the connected bus-bar. A plug being inserted in any hole in that bus-bar establishes connection between the bus-bar and the adjacent wire 14, by which thel current passes through the branch and returns on the other wire 11i to the other bus-bar and to the other wirein conduit 2.

Various modifications can be made and do not limit myself to the particulars shown and described as they are but an illustration of the invention in one form.

Having described my invention, what claim as new and desire to secure by Letters Patent, is:

l. in a distributing board, a base of insulating material having apertures therethrough, a` bus-bar lined upon one face of the base, a circuit terminal mounted independent of the base on the opposite side thereof, and a plug adapted to be held in the said aperture and adapted to make electrical connection through a fuse cont-ained therein from said' bus-bar to said terminal, substantially as described'.

2. ln a distributing board, a containing cabinet, insulated terminals for branch circuits fixed within said cabinet, a super-base removably mounted in said cabinet in such manner as withv the box toinclose said branch circuit terminals, bus-bars fixed upon said super-base, said super-base and bus-bars having apertures and electrical conductive means adapted to be insertedinto said apertures and establish electrical connection between the bus-bars andv the terminals, substantially asdescribedl.

3. ln a device of the character described, a base, a super-base removably mounted therewith and being insulated, bus-bars aperturcd and having shells secured to the walls thereof whereby to secure the bus-bars to the super-base, the latter being apertured therefor, and insulated studs mounted on the base and with. a bore registering with the aperture in the bus-bar, substantially as described.

et. In a device of the character described, a base and a super-base, the latter being provided with bus-bars and the former with studs, the said studs` super-base and busbars having registering apertures for the insertion of electrical conductive members in contact, substantially as described.

In a device of the character described, a base of insulating material and a bus-bar fastened` thereto by means of a metallic shell attached to the bus-bar, the base being recessed to receive the shell and the shell being swaged in said recess, a plug carrying a fuse-wire adapted to be inserted and held in theshell, said shell also serving as a medium for electric connection between the bus-bar andl the' fuse-wire, substantially as described.

6. In a device of the character described, a base, a super-base and a bus-bar thereon, both being apertured and the bus-bar'being held. to the super-base, a non-conductive stud on the base let into said aperture and having a current wire and a contacter therewith, and a plug adapted to be inserted in the aperture and make a circuit between the contacter and the bus-bar, substantially as set forth.

T. ln a device of the character described, a bnf-fe, a super-base and a bus-bar thereon, both being apertured, a conductive shell secured tothe bus-bar and securing it to the super-base, a contacter on Athe opposite side of the super-base and a plug adapted to be inserted in the apertures and having means to make electrical connection ietween the bus-bar and' the contacter, substantially as set forth.

8. ln a device of the character described, a base, a super-base and a bus-bar thereon,

`both being apertured and the bus-bar being held to the super-base by a shell secured. to

i the latter, a non-conductive stud on the base let into said aperture and having a current `wire and a contacter therewith, and a plug having means to make electrical contact between the contactor and the bus-bar, substantially as set forth.

9. ln a device of the character described,

ia' base, an insulating super-base, bus-bars apertured and having shells secured to the 'walls thereof whereby to secure them to the super-base, the latter being apertured therefor, insulated studs mounted on the base with a bore registering with the bus-bar, andV means whereby to establish electrical connection between the bus-bar and the stud, the latter comprising a contactpoint, substantially as described.

l0. in a device of the character described, a base with a super-base, the latter being provided with bus-bars and the former with studs, the` said .st-uds, super-base and busbars having registering apertures for the insertion of electrical comluctive members in contact, anc said electricalconductive members, substantially as described.

l1. In a device of the character described, l the insertion of Jche plug in the bus-bnr, Subthe combination with an insulating Superstantially as described. 10 bese having 2L bus-bnr secured thereon, Jche In testimony whereof I zLHiX niy signature bus-bar and the Super-base being apertured, in presence of two Witnesses.

'1 of en independent contactor point, a plug HENRY J. BLAKESLEE.

carrying a Wire one end whereof is adapted VitneSSeS: to Contact With the bus-bar and the other ELEANOR T. DE GIORGI,

end to Contact with the contaotor point upon HENRY M. LOVE. 

